The Stake-o-matic is a client-side tool (everything runs in the browser, no data is send to a server) for quickly creating a stakeholder diagram that can be saved to an image file.

It uses dom-to-image under the hood, which (unfortunately) doesn't support IE. As such, saving to an image file will only work in other browsers.

The intended product (technical)
The operational work area (sociotechnical)
The containing business (sociotechnical)
The wider environment (sociotechnical)